Steel Beam Supporting Cavity Wall Detail

Plan area of bonded masonry supporting steel beam to be greater than or equal to 0 1m.

Steel beam supporting cavity wall detail.

Ends of beams can be laterally restrained using one of the following methods. The spacers are at a minimum of 750crs along the length of the beam including close to the support. In these cases they were packed with oak timbers struts to spread the floor loads correctly across the rsj steel beams. Some of the beams were supporting existing timber floors.

Steel beam calculations accepted by building control. Supporting masonry to comply with eurocode 6 or bs 5628. Figure 1 effective areas supported by steel beams. Openings in cavity walls.

The designer is to ensure that the proposed detail adequately ensures that the end of the beam is laterally restrained. 3 end of beam fixed to a column or a beam. Cavity walls are common in houses built from the 1920 s onwards typically when making an opening in a cavity wall two steel beams are used with separate steel beams supporting the inner and outer leaves. Walls that face driven rain are particularly vulnerable to water penetration.

This is important because the bricks need to be tied back cross bonded into the inner leaf of gable end cavity wall. T able of c ontents c hapter 1 m asonry c avity w all d etails s hear c onnected c hapter 2 m asonry c avity w all d etails a djustable t ies c hapter 3 b rick v eneered s teed s tud b ackup w all d etails s hear c onnected c hapter 4 b rick v eneered s teel s tud b ackup w all d etails s lotted t ies c hapter 5 s ingle w ythe l oadbearing m asonry w all d etails c hapter 6 m. Table 4 size of steel beam supporting floor. 6 if steel beam to steel beam connections are required use appendix 6 5 c.

If any area shown as void contains a staircase add 2m 2 to the effective area supported by any beam which supports partially or fully that staircase. 2 end of beam fixed to a masonry wall. Above the rsj steel beam we dry pack the small gaps up to the first floor support with a semi dry strong 2 1 cement mixture this is compacted into the gaps between the beam and the first floors. M16 bolts fix the beam back to the side plates.

The minimum end bearing length at supports to be 100mm. If you install one large steel that picks up a double skin wall you should also install a cavity tray above it. Steel beam end bearings to be located on substantial load bearing masonry walls or piers. Cavity walls consist of 2 skins of masonry separated by a gap cavity.

I regularly specify double pfc s for existing new cavity walls but i always specify steel spacers formed with angle one side of which is welded to 1 pfc and the other side is bolted to the other with a minimum of 2 no m16 bolts. Note that the wind post is formed from remains of the existing load bearing wall.